5U75

The structure of Staphylococcal Enterotoxin-like X (SElX), a Unique Superantigen

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	ROTATING ANODE
Source details	RIGAKU MICROMAX-007 HF
Temperature [K]	110
Detector technology	IMAGE PLATE
Collection date	2013-07-27
Detector	MAR scanner 345 mm plate
Wavelength(s)	1.54180
Spacegroup name	P 65
Unit cell lengths	92.141, 92.141, 53.418
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	18.000 - 1.660
R-factor	0.1866
Rwork	0.185
R-free	0.21430
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4dxg
RMSD bond length	0.009
RMSD bond angle	1.385
Data reduction software	XDS
Data scaling software	SCALA (3.3.20)
Phasing software	PHASER (2.5.2)
Refinement software	REFMAC (5.8.0107)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	18.850	18.847	1.750
High resolution limit [Å]	1.660	5.260	1.660
Rmerge	0.151	0.032	1.942
Number of reflections	28745
<I/σ(I)>	5	21.9	0.4
Completeness [%]	94.4	97.7	87.6
Redundancy	15.6	15.2	14.9
CC(1/2)	0.999	1.000	0.522

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7.5	296	SEIX (10 mg/ml), SLeX (5 mM), PEG 3350 (24%), Tri-Lithium citrate (250 mM)